------------[ cut here ]------------
WARNING: CPU: 2 PID: 31257 at fs/exec.c:118 path_noexec+0x1ca/0x230 fs/exec.c:118
Modules linked in:
CPU: 2 UID: 0 PID: 31257 Comm: syz.7.7294 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
RIP: 0010:path_noexec+0x1ca/0x230 fs/exec.c:118
Code: ff 83 e3 02 48 89 de e8 54 7f 86 ff 48 85 db 41 0f 95 c4 e8 d8 83 86 ff 44 89 e0 5b 5d 41 5c e9 cc 1b 5f 09 e8 c7 83 86 ff 90 <0f> 0b 90 e9 47 ff ff ff e8 39 e6 eb ff e9 a8 fe ff ff e8 2f e6 eb
RSP: 0018:ffffc9000365fc98 EFLAGS: 00010287
RAX: 00000000000000b2 RBX: ffff88801c78caa0 RCX: ffffc90007a81000
RDX: 0000000000080000 RSI: ffffffff823484d9 RDI: 0000000000000007
RBP: 0000000000000000 R08: 0000000000000007 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000080000000
R13: 0000000000000001 R14: 0000000000000002 R15: 0000000000000000
FS:  0000000000000000(0000) GS:ffff8880976c3000(0063) knlGS:00000000f5496b40
CS:  0010 DS: 002b ES: 002b CR0: 0000000080050033
CR2: 00000000ff93ec5c CR3: 0000000057636000 CR4: 0000000000352ef0
Call Trace:
 <TASK>
 do_mmap+0xd23/0x1210 mm/mmap.c:469
 vm_mmap_pgoff+0x29e/0x470 mm/util.c:580
 ksys_mmap_pgoff+0x32c/0x5c0 mm/mmap.c:604
 do_syscall_32_irqs_on arch/x86/entry/syscall_32.c:83 [inline]
 __do_fast_syscall_32+0x7c/0x3a0 arch/x86/entry/syscall_32.c:306
 do_fast_syscall_32+0x32/0x80 arch/x86/entry/syscall_32.c:331
 entry_SYSENTER_compat_after_hwframe+0x84/0x8e
RIP: 0023:0xf7f75579
Code: b8 01 10 06 03 74 b4 01 10 07 03 74 b0 01 10 08 03 74 d8 01 00 00 00 00 00 00 00 00 00 00 00 00 00 51 52 55 89 e5 0f 34 cd 80 <5d> 5a 59 c3 90 90 90 90 8d b4 26 00 00 00 00 8d b4 26 00 00 00 00
RSP: 002b:00000000f549655c EFLAGS: 00000296 ORIG_RAX: 00000000000000c0
RAX: ffffffffffffffda RBX: 0000000080000000 RCX: 0000000000003000
RDX: 0000000003000007 RSI: 0000000000000011 RDI: 0000000000000005
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000296 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
 </TASK>
----------------
Code disassembly (best guess), 2 bytes skipped:
   0:	10 06                	adc    %al,(%rsi)
   2:	03 74 b4 01          	add    0x1(%rsp,%rsi,4),%esi
   6:	10 07                	adc    %al,(%rdi)
   8:	03 74 b0 01          	add    0x1(%rax,%rsi,4),%esi
   c:	10 08                	adc    %cl,(%rax)
   e:	03 74 d8 01          	add    0x1(%rax,%rbx,8),%esi
  1e:	00 51 52             	add    %dl,0x52(%rcx)
  21:	55                   	push   %rbp
  22:	89 e5                	mov    %esp,%ebp
  24:	0f 34                	sysenter
  26:	cd 80                	int    $0x80
* 28:	5d                   	pop    %rbp <-- trapping instruction
  29:	5a                   	pop    %rdx
  2a:	59                   	pop    %rcx
  2b:	c3                   	ret
  2c:	90                   	nop
  2d:	90                   	nop
  2e:	90                   	nop
  2f:	90                   	nop
  30:	8d b4 26 00 00 00 00 	lea    0x0(%rsi,%riz,1),%esi
  37:	8d b4 26 00 00 00 00 	lea    0x0(%rsi,%riz,1),%esi